Quick99TransAm

iTrader: (15)

which heads did the 2010 l99 engines get where they ls3 or l92 heads

Beau@SDPC

iTrader: (14)

They do not have the Hollow Stem intake valve, but are not truely an "L92 casting" either. I would call them a solid stemmed optioned LS3 head.

Jon@Texas-Speed

iTrader: (18)

Same castings in the L99, LS3, L92, L76. Just different valves in different engines. I believe the LS3 got hollow stem valves and the L99 heads are not. I think the LS3 got an upgraded spring as well. Let me know if you have any other questions!

Thanks!
Jon

Quick99TransAm

iTrader: (15)

Ok Good because i am getting a set for 300 assembled with 4000 miles.Thanks for the help Can always count on TSP and Scoggin